Butterfly Knife and Comb Knife Trainer, Rainbow Metal Practice Balisong Steel Dull Knife with Sheath (Training Knife) 100% Safe KC02A

    Dimension:  Knife Size: Length: 23.2cm (unedged), Blade length: 9.5cm (unedged), Blade thickness: 0.3cm, Shank length: 13.5cm, Blade width: 1.8cm.  Comb Size: Length: 22.7cm (unedged), Blade length: 9.5cm (unedged), Blade thickness: 0.3cm, Shank length: 13.5cm. Weight: 180g. Hardness: 56HRC. Surface Treatment: Color Titanium.   1. Trainer knife has a comb blade with weight reducing cut-outs.The blade is not sharp and it cannot be sharpened due to the design. Knife handles feature pin and channel construture and look extra thick.But they are skeletonized designed to reduce weight.   So they are not too much heavy ,have a good feel in the hand, and won't slip.   2. The butterfly knife without a blade. It is 100% legal in the US and, unlike a real knife, you can't cut yourself. The butterfly trainer will help you learn how to flip without getting injured but, note, you can develop bad habits if you stay on the trainer too long.   For example, you can ingrain some poor flips that, wit